Load with cPickle?

Si tu tentes de charger un fichier qui n'est pas correcte, tu vas lever une exception:

Code:

1
2
3
4
5
>>> import cPickle
>>> d = cPickle.load(open('unpickable.txt'))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
cPickle.UnpicklingError: unpickling stack underflow

Il suffit donc de mettre en place un traitement d'exception:

Code:

1
2
3
4
5
6
7
8
9
10
11
>>> try:
...     d = cPickle.load(open('unpickable.txt'))
... except cPickle.UnpicklingError:
...     print "impossible de charger"
... else:
...     print "ok"
... finally:
...     print "fin"
... 
impossible de charger
fin